I made it at TechShop, because a laser cutter is not something I have at my house.
Step 1: Design Your Logo
I created an outer circle a little over 3.5" to be the vector outline--this is what the laser cutter will actually be cutting out. Inside of that outer boundary, I created a circle of width 7px to highlight the ornament's shape. This was etched into the final product. I then flipped the logo (see picture) and placed it within the circle in a position that looked best to me. Finally, I positioned a small vectored hole toward the top of the ornament, which is where a hook will later attach. Now of course, you could just drill a hole out afterward and skip designing in a hole, but that defeats the whole purpose of using a laser cutter. be sure to center this hole--otherwise your ornament will wind up tilting to the side.
Step 2: Send It to the Laser Cutter
I ran into an issue with lasing--the machine I was using for whatever reason wasn't recognizing the vector outlines as vectors, so the piece wasn't being cut out. I saved my file as a .eps, though, and then was able to import into Corel Draw. I set all vector lines to hairline width, set the printing settings correctly, and voila! A piece came out beautifully.
Step 3: Marvel, Clean, and Mount
I then cleaned my ornament with simple all purpose cleaner and paper towels, though I'm sure there are better materials for this purpose, and I bent a paperclip to form a Christmas ornament hook.
SPECIAL LASERCUTTING BONUS: if you don't cut a hole at the top, guess what? You've got coasters!